evidence of the non-evidential - >> mind the _

Photography – at least until the occurence of the digital – and still as an unconcious layer transports the idea of being able to establish an indexical archive of the visible. The most questionable and rethinkable influence which got passed on through this understanding was and is surely the claim of gaining an objective image. … and never to forget the impact an image can have ..
In this sense photography which present non-evidential evidence like in the announced exhibition at the Metropolitan Museum NYC touches borders of this medium and its inherent world creating (evidential) methods in itself. At the same time it deciphers and makes use of scientific seriousness. But despite the usual clearly assumed evidential impact these occult images display better than official scientificly acknowledged ones the impact of insecurity and introduce us to the field of ambivalence … (.. the dreamer in us / NYT article …)

A unique characteristic of photography has always been its ability to record the visible, material world with truth and accuracy. Interestingly, advocates of spiritism at the turn of the last century enlisted photography to provide manifest proof of the immaterial:

emanations and auras; thoughts, hallucinations, and dreams; or the spirits of the deceased. Closer to the scientific revelations of the X-ray (discovered in 1896) than to the double-exposure parlor tricks of 1850s ghost photographs, the more than 120 stunning and surprising works in this exhibition reflect an attempt to reconcile the physical and spiritual worlds.
(link)